Michael Greenfield of Greenfield Guitars explains clearly why it's critical to have properly shaped and sanded guitar bodies before you rout them for binding. Michael shared this great Trade Secret with us during the 2013 Northwoods Seminar last August.
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In this Trade Secrets video:

• A tip from one of the world's finest guitar builders
• A simple tool adapted from the Collings Guitars factory
• Spring steel follows the contours of the guitar body
• Sighting with a straightedge to check for flatness